The start of the electronics journey of improving the tone on your bass. Best Bass Gear carries a large assortment of pickups for many different basses with multiple string configurations to choose from.

Further enhance the tone shaping capabilities on your bass. A preamp can offer further tone shaping of two bands of equalization with treble and bass, three bands of equalization with treble, bass and midrange, or even four bands to offer further tonal expansion. Best Bass Gear carries a large variety of preamp solutions for your bass guitar.

Improve the quality of the hardware on your existing bass or fresh build. Bridge replacements offer better aesthetics over stock hardware along with the added benefit of further control of variables like intonation, string action height, and string spacing. Best Bass Gear stocks a wide selection of bridges in a variety of different string spacings, finishes, string configurations and manufacturers..

Tuning machines offer a nice custom touch when used with an upgrade or a fresh start of years of future stability with tuning on new builds. Multiple key style and finishes is available for a unique touch to any bass. Best Bass Gear is proud to stock tuning keys from Hipshot & Gotoh.

Detuners provide a unique way to drop tune your bass guitar from a single step up to two full steps with the convenience of only a flick of a lever! Available as single detuners or as a set with tuning keys and a detuner for the lowest string. We offer a variety of styles and finishes to upgrade your existing tuning key to a detuner or start a fresh build.

DESCRIPTION

Control Configuration

Volume/Blend Stack

Treble/Bass Stack

Mid/Mid Stack

Passive Tone

Blend & Pickups Switch

Active/Passive Switch

Black Finish

Description

This preamp is made for Fender Deluxe style basses with a side mounted jack.The J Retro 01 Bass Preamp is designed to fit directly into standard "Jazz" style basses without modification, including a 9v battery. Its high quality circuit uses three stacked knobs a passive tone control and includes an active blend circuit plus a 3 band equalizer with bass, variable frequency mid, treble and bright function.

A very gentle built in contour gives immediate colour without detracting from the basic sound of any bass. The active blend circuit prevents the loss associated with many passive basses where, when both pickups are up full, the signal from one pickup feeds into the other and vice versa.

However, a switch is included to allow a passive equal mix of both pickups. A second switch - basic "get-you-out-of-trouble" passive mode is included in case the battery dies in crucial circumstances, but this mode allows lots of useful settings too.

Easy to fit, no routing or modification on most basses.

A standard PP3 battery fits under the plate in the standard cavity in most J-style basses.

Technical Specifications

Volume/Blend Stack

Volume

The upper knob is the Volume which has two sections under the same knob. A high impedance for the passive path and a low impedance section is used for the active circuitry. When used active, this knob has active circuitry after it'so that the feed to your amplifier is a low impedance drive.

Blend & Pickups Switch

The lower outer knob is the Blend balance for the pickups. Turn it fully clockwise for the neck pickup alone and fully anti-clockwise for the bridge pickup. The midway position, which has an indent, gives an equal mix of both pickups. The balance between the pickups is continuously variable with progressive level compensation towards the single pickup settings. Important:- The Pickups switch (by the blend) must be set pointing towards the jack for the Blend to function.

Treble/Bass Stack

Treble: (+12dB @ 3 kHz, -12dB @ 1kHz)

The upper knob is the Treble control with boost and cut. The central 'flat' position is indented. The cut settings work on lower frequencies compared to boost to give a deeper sound when the top is rolled off.

Bright: (+8dB @ 7kHz)

Pull the Treble knob for the Bright setting.

Bass: (+15dB @ 50Hz)

The lower outer knob is the boost only Bass control. The frequency band of boost gets progressively lower as the boost is increased. An indent midway is included to aid the setting of this control.

Mid/Mid Stack

Mid Boost/Cut: (+/- 12dB)

The upper knob controls the amount of Mid boost or cut at frequencies according to the setting of the Frequency knob. The midway indent is the 'flat' position.

Mid Freq: (150Hz - 3kHz)

The lower outer knob is continuously variable and sets the Mid frequencies for boost or cut.

Passive Tone

The passive tone pot consists of two sections, one for each pickup. Two sections are necessary since the pickup signals are kept separate and fed to their own individual input amplifiers prior to the electronic blend circuitry.